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Studies of a single-machine-tool system showed that the time the machine operates before breaking down is exponentially distributed with a mean 10 hours. Determine the failure rate and the reliability. Find the probability that the machine operates for at least 12 hours before breaking down.
The amount of growth during a set 15-day period for a population of sunflower plants follows a normal distribution with μ=3.07 cm and σ=0.40 cm.
table given below presents the number of surface finish defects in the primer paint found by visual inspection of
Describe how fuel and labor have impacted motor carrier cost structures and how they have altered motor carrier operations.
Understand autocorrelation and multicollinearlity in reference to the following questions. What type of regression is it common in? When is it likely to occur? What is its negative impact? How do we see if it exists? If found, how is it eliminated..
What score was earned by more students than any other score? Why? What was the highest score earned on the exam?
The spot rate of the Australian dollar is $.62. The 1-year forward rate of the Australian dollar is $.60. The Australian 1-year interest rate is 9 percent.
two towns both have a mean income for their residents of 30000. the standard deviation of incomes of residents in
the following data is the square footage in thousands of square feet and annual sales in millions of dollars for a
Using the data on the CD, make a scatterplot of the average tuition for four-year colleges against the tuition charged for two-year colleges. Describe the relationship.
if you take the within groups sum of squares and divide it by the between groups degrees of freedom you getthe mean
suppose the people living in a city have a mean score of 47 and a standard of 3 on a measure if concern about the
A recent article in theWall Street Journal reported that the prime rate for large banks now exceeds 9 percent. A sample of eight small banks in the Midwest revealed the following prime rates (in percent):
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